package com.itheima.d6_thread_communuication;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class Desk {
    private List<String> list = new ArrayList<>();

    //放一个包子
    public synchronized void put() {
        try {
            String name = Thread.currentThread().getName();
            //判断是否有包子
            if(list.size() == 0){
                list.add(name + "做的肉包子");
                System.out.println(name + "做了一个肉包子~~~");
                Thread.sleep(2000);

                //唤醒别人，等待自己
                this.notifyAll();
                this.wait();
            }else{
                //有包子不做了
                //唤醒别人，等待自己
                this.notifyAll();
                this.wait();
            }
        } catch (Exception e) {
             e.printStackTrace();
        }

    }

    public synchronized void get() {
        try {
            String name = Thread.currentThread().getName();
            //判断是否有包子
            if(list.size() != 0){
                System.out.println(name + "吃了：" +list.get(0));
                list.clear();
                Thread.sleep(2000);
                //唤醒别人，等待自己
                this.notifyAll();
                this.wait();
            }else{
                //有包子不做了
                //唤醒别人，等待自己
                this.notifyAll();
                this.wait();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
